Design of a Small Renewable Resource Model based on the Stirling Engine with Alpha and Beta Configurations

2017 ◽  
Vol 8 (2) ◽  
pp. 360
Author(s):  
Faisal Zahari ◽  
Muhammad Murtadha Othman ◽  
Ismail Musirin ◽  
Amirul Asyraf Mohd Kamaruzaman ◽  
Nur Ashida Salim ◽  
...  
Keyword(s):  
Temperature Variation ◽  
Waste Heat ◽  
Renewable Resource ◽  
Stirling Engine ◽  
Heat Energy ◽  
Maintenance Cost ◽  
Resource Model ◽  
Stirling Cycle ◽  
Cooling Agent ◽  
Stirling Engines

<p>This paper presents the conceptual design of Stirling engine based Alpha and Beta configurations. The performances of Stirling engine based Beta configuration will be expounded elaborately in the discussion. The Stirling engines are durable in its operation that requires less maintenance cost.  The methodology for both configurations consists of thermodynamic formulation of Stirling Cycle, Schmidt theory and few composition of flywheel and Ross-Yoke dimension. Customarily, the Stirling engine based Beta configuration will operate during the occurrence of low and high temperature differences emanating from any type of waste heat energy. A straightforward analysis on the performance of Stirling engine based Beta configuration has been performed corresponding to the temperature variation of cooling agent. The results have shown that the temperature variation of cooling agent has a direct effect on the performances of Stirling engine in terms of its speed, voltage and output power. </p>

A09 Development of Waste Heat Recovery Stirling Engine for Electric Propulsion Ship : 1st Report, Development of Practical Stirling Engines and Engine Design

2011 ◽  
Vol 2011.14 (0) ◽  
pp. 71-72
Author(s):  
Teruyuki AKAZAWA ◽  
Osamu SAKAMOTO ◽  
Taeko TAHARA ◽  
Koichi HIRATA ◽  
Yasuhisa ICHIKAWA ◽  
...  
Keyword(s):  
Electric Propulsion ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Stirling Engine ◽  
Engine Design ◽  
Stirling Engines

scholarly journals Stirling engines - the state of technology development and computational models

2021 ◽  
Author(s):  
Mariusz Furmanek ◽  
Jacek Kropiwnicki
Keyword(s):  
Power Systems ◽  
Computational Models ◽  
Waste Heat ◽  
Numerical Models ◽  
Renewable Energy Sources ◽  
Primary Energy ◽  
Stirling Engine ◽  
Correct Selection ◽  
Engine Operation ◽  
Stirling Engines

Stirling engines represent a technologically important solution in combined heat and power systems. Their use enables the achievement of over 90 percent efficiency in the management of the primary energy source with a very high durability of the device, mainly due to the lack of contact of the working gas with external factors and a very small number of mechanical components. The use of a Stirling engine may be equally important when applying renewable energy sources or waste heat from other processes. The first part of the work presents an overview of available commercial Stirling engine solutions. The second part of the work presents an overview of numerical models of Stirling engine operation, which enable the correct selection of the main geometrical features of the devices and the improvement of the structure in order to maximize efficiency or power.

scholarly journals A Comprehensive Perspective of Waste Heat Recovery Potential from Solar Stirling Engines

2021 ◽  
Vol 313 ◽  
pp. 06001
Author(s):  
Siddharth Ramachandran ◽  
Naveen Kumar ◽  
Venkata Timmaraju Mallina
Keyword(s):  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Payback Period ◽  
Stirling Engine ◽  
Economic Feasibility ◽  
Levelized Cost Of Electricity ◽  
Stirling Engines

Despite the higher efficiency advantage, the cost reduction of PV technology has been more successful compared to the dish Stirling engine (DSE) due to the large market volume and sturdy competition. Irrespective of the types of source, there exists a potential of waste heat recovery from Stirling engines operating at higher temperature regime. Accordingly, to make DSE commercially viable and efficient, innovative ways such as hybridization (combing a bottoming cycle), Co-generation, Tri-generation etc. need to be explored. In this paper, the techno-economic feasibility of hybridization of a typical solar DSE with a bottoming organic Rankine cycle (ORC) via. a heat recovery vapour generator (HRVG) is explored. The overall energetic and exergetic efficiency of the DSE has been improved by 5.79% and 5.64% while recovering the waste heat through a bottoming ORC. The design and effective incorporation of the HRVG with cooler side of the Stirling engine is identified to be crucial for the overall exergetic performance of solar Stirling-ORC. Further, the economic feasibility of a solar String-ORC combination is evaluated in terms of levelized cost of electricity (LCOE) and payback period. Both LCOE and payback period are found to be in comparable range with the PV technology.

scholarly journals Analisa Isolasi Pipa Generator Mesin Stirling Tipe Alpha Sudut Fasa 180°

2021 ◽  
Vol 6 (1) ◽  
pp. 1-7
Author(s):  
Dhimas Satria ◽  
Rina Lusiani ◽  
Erny Listijorini ◽  
Aswata
Keyword(s):  
Heat Loss ◽  
Phase Angle ◽  
Stirling Engine ◽  
Compression Process ◽  
Stirling Cycle ◽  
Compression Speed ◽  
Stirling Engines ◽  
Pipe Insulation ◽  
Alpha Type ◽  
The Ideal

This research is a development of previous research, where in the previous research, a design innovation was carried out on an alpha-type stirling engine by making the phase angle to 180o, with the aim of reducing the effect when the cold cylinder is compressed, because the phase angle currently used is (90o) with disadvantages, namely the cold cylinder is perpendicular to the top, so that the compression process against gravity. But in previous studies, the generator pipe was too long, causing a lot of energy or heat loss (heat loss) so that the compression speed was small. So that in the research, innovated and analyzed the pipe insulation of alpha-type stirling engine generators, alpha-type stirling engines, 180o phase angle. The research method used is to use the thermodynamic approach with Schmidt theory and the theory of the ideal cycle stirling engine. while the simulation is done using the Ideal Stirling Cycle Calculator. Results investigated shows that providing insulation on the generator pipes of an alpha-type stirling engine for an alpha-type stirling engine with a 180o phase angle is proven to reduce a lot of energy or heat loss (heat loss) due to too long generator pipes, with a heat loss value ratio of 226.66 W for the pipe. generator that uses insulation whose value is smaller than the value of the heat loss when the generator pipe without using isocation is 1,584.12 W.

scholarly journals Investigation of effect of heat exchanger size on power output in low-temperature difference Stirling engines

2021 ◽  
Vol 313 ◽  
pp. 03002
Author(s):  
Linda Hasanovich ◽  
David Nobes
Keyword(s):  
Heat Exchanger ◽  
Low Temperature ◽  
Power Output ◽  
Heat Exchangers ◽  
Waste Heat ◽  
Significant Loss ◽  
Stirling Engine ◽  
Dead Volume ◽  
Optimal Geometry ◽  
Stirling Engines

The Stirling engine is capable of converting any source of thermal energy into kinetic energy, which makes it an attractive option for utilizing low-temperature sources such as geothermal or waste heat below 100 °C. However, at these low temperatures, the effects of losses are proportionally higher due to the lower thermal potential available. One such significant loss is excess dead volume, wherein a significant contributor is the heat exchangers. The heat exchangers must be selected to optimize power output by minimizing the dead volume loss while maximizing the heat transfer to and from the engine. To better understand what the optimal geometry of the heat exchanger components is, a Stirling engine is modelled using a third-order commercial modelling software (Sage) and trends of engine properties of power, temperature, and pressure for different heat exchanger geometries are observed. The results indicate that there is an optimum heat exchanger volume and geometry for low temperature Stirling engines. This optimum is also affected by other engine properties, such as regenerator size and engine speed. These results provide insight into the optimal geometry of these components for low-temperature Stirling engines, as well as providing design guidance for future engines to be built.

scholarly journals A Theoretical and Experimental Study of Moderate Temperature Alfa Type Stirling Engines

Energies ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1622 ◽  
Author(s):  
Jacek Kropiwnicki ◽  
Mariusz Furmanek
Keyword(s):  
High Efficiency ◽  
Waste Heat ◽  
Heating Temperature ◽  
Mechanical Energy ◽  
Stirling Engine ◽  
Moderate Temperature ◽  
Heat Sources ◽  
Stirling Engines ◽  
Charge Pressure ◽  
Further Development

The Stirling engine is a device that allows conversion of thermal energy into mechanical energy with relatively high efficiency. Existing commercial designs are mainly based on the usage of high temperature heat sources, whose availability from renewable or waste heat sources is significantly lower than that of moderate temperature sources. The paper presents the results of experimental research on a prototype alpha type Stirling engine powered by a moderate temperature source of heat. Obtained results enabled calibration of the evaluated theoretical model of the Stirling engine. The model of the engine has been subsequently used for the analysis of regenerator effectiveness influenced by the charge pressure and the heating temperature. Performed study allowed to determine further development directions of the prototype engine to improve its power and efficiency. As a result of optimization, worked out design will potentially increase the indicated efficiency up to 19.5% (5.5% prototype) and the indicated power up to 369 W (114 W prototype).

scholarly journals Application of Stirling engine for recovery energy from exhaust gas

2018 ◽  
Vol 19 (9) ◽  
pp. 89-92
Author(s):  
Jacek Kropiwnicki ◽  
Mariusz Furmanek
Keyword(s):  
Waste Heat ◽  
Combustion Engine ◽  
Mechanical Energy ◽  
Power Source ◽  
Stirling Engine ◽  
Flue Gases ◽  
Exhaust Gas ◽  
Stirling Engines ◽  
Waste Energy ◽  
Engine Type

Stirling engine is device generating mechanical energy without combustion fuel inside cylinder. This fact allows to supply engine from any power source. Example of such energy source can be solar radiation, combustion low-calorie carbon in outside combustion chamber or waste heat from other device like combustion engine mounted in bus or lorry. Use that kind of device in car allows to reduce fuel consumption through increase of efficiency of utilization thermal energy produced in combustion engine. The paper presents commercial solution of Stirling engines powered by waste energy and project of conceptual Stirling engine type alpha powered by flue gases from truck. The initial analysis results of hydraulic resistance in that engine have been also included.

Thermodynamical Performance Analysis of Cold Storage Using Waste Heat Energy

2018 ◽  
Vol 2 (9) ◽  
pp. 24-30
Author(s):  
Saimanichandra Vasala ◽  
◽  
Santosh Kumar Panda ◽  
Keyword(s):  
Performance Analysis ◽  
Cold Storage ◽  
Waste Heat ◽  
Heat Energy
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